Tin is a chemical element with the symbol Sn and atomic number 50.

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Tin is a post-transition metal in group 14 of the periodic table of elements. It is obtained chiefly from the mineral cassiterite, which contains stannic oxide, SnO2. The first tin alloy used on a large scale was bronze, made of 1⁄8 tin and 7⁄8 copper, from as early as 3000 BC. After 600 BC, pure metallic tin was produced.

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Keywords: 50, chemical, element, elemental, elements, metal, post, post-transion, post-transition, sn, tin, transition